Auto merge of #106458 - albertlarsan68:move-tests, r=jyn514

Move src/test to the root

See MCP at rust-lang/compiler-team#573

There may be more changes needed.

The first commit is just the move of the files:
You can check that the first commit did not do anything else than renames by running
```
git diff --diff-filter=r -M100% <rust-lang remote>/master <first commit hash>
```
The output should be empty, because the filter excludes renames, and the match threshold for qualifying a rename is 100%.

The second one is mostly a "find and replace" of `src/test` to `tests` and whatever is needed to make CI pass.

What is left to do:
---

- [x] Move directory
- [ ] Change references to `src/test`
    - [x] Change references in-tree
    - [ ] Change references in submodules / out-of-tree docs
- [x] Make CI pass:
    - [x] Fix tidy
    - [x] Fix tests
    - [x] Bless tests if needed (shouldn't normally)
- [ ] Merge it !

1 files changed, 0 insertions, 18 deletions

diff --git a/src/test/ui/expr-block.rs b/src/test/ui/expr-block.rs
deleted file mode 100644
index ff87595c934..00000000000
--- a/src/test/ui/expr-block.rs
+++ /dev/null
@@ -1,18 +0,0 @@
-// run-pass
-#![allow(unused_braces)]
-#![allow(dead_code)]
-
-// Tests for standalone blocks as expressions
-
-fn test_basic() { let rs: bool = { true }; assert!((rs)); }
-
-struct RS { v1: isize, v2: isize }
-
-fn test_rec() { let rs = { RS {v1: 10, v2: 20} }; assert_eq!(rs.v2, 20); }
-
-fn test_filled_with_stuff() {
-    let rs = { let mut a = 0; while a < 10 { a += 1; } a };
-    assert_eq!(rs, 10);
-}
-
-pub fn main() { test_basic(); test_rec(); test_filled_with_stuff(); }